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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8162631 | Floating pinion bearing for a reciprocating pump A reciprocating pump assembly includes a power frame that houses a crankshaft. The crankshaft is mechanically connected to a large gear or bull gear on each end that is in mechanical engagement with a small gear or pinion bearing. A bearing housing is integrally for... | 04/24/2012 |
| 7607898 | Method and apparatus for delivering pressurized gas This invention relates to an apparatus for pressurizing a fluid and delivering a gas comprising a pump, an accumulator and a heater such that the pump pressurizes a quantity fluid received from a fluid store and delivers that pressurized fluid to an accumulator. The... | 10/27/2009 |
| 7404703 | Air pump with apparatus to hold nozzle An air pump has a cylinder, a shaft to be manipulative for inflation, a hose connected to the cylinder, a nozzle connected to an end of the hose and a handle pivoted on an end of the shaft. The handle is manipulative to be moved between an expanded position and a co... | 07/29/2008 |
| 7354255 | Piston vibratory pump The present invention is an improved vibratory pumping mechanism that increases the efficiency of utilization of the vibratory motion within a mechanism. More specifically, the mechanism includes a central chamber within which a piston is oscillated to draw fluid in... | 04/08/2008 |
| 7338515 | System, combination and method for controlling airflow in convective treatment In a convective system that includes a blower to thermally treat and pressurize air, a convective device to receive and convect the thermally-treated pressurized air, and an air hose to conduct a flow of thermally-treated pressurized air from the blower to an inlet ... | 03/04/2008 |
| 7322800 | System and method of providing hydraulic pressure for mechanical work from an engine lubricating system The method provides hydraulic pressure for mechanical work from an engine lubricating system in an internal combustion engine by supplying oil to an engine lubrication gallery for lubricating the engine and to at least one variable oil demand accessory. Each of the ... | 01/29/2008 |
| 7316177 | Hydraulic hand pump with locking device A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unloading valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or t... | 01/08/2008 |
| 7302964 | Housing for a liquid seal vacuum and pressure relief valve apparatus A housing and a method of using a liquid for controlling vapor flow through a valve apparatus between a canister and atmospheric conditions. The housing includes a container and a first partition that projects from the housing into the liquid and divides the vapor c... | 12/04/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7261525 | Outlet check valve for fluid bladders A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support plate includes a fluid outlet. A foam material is positioned in the ... | 08/28/2007 |
| 7238165 | Fluid pump A pumping system 10 provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The port 60 includes a ball valve... | 07/03/2007 |
| 7220273 | Control of airflow to an inflatable thermal device Airflow provided through an air hose to the inlet port of an inflatable thermal device is controlled by a mechanical device disposed at an end of the air hose that is coupled to the inlet port. In response to coupling the end of the air hose to the inlet port, the m... | 05/22/2007 |
| 7144382 | Device for treating a fluid-like sample such as a whole blood, with treatment fluid, use of such a device and kit containing such a device A device for treating a fluid-like sample, in particular whole blood, with treatment fluid. The device comprises a tubular container with a first piston and a second piston, with a piston gap between them in which the treatment fluid is located in the initial positi... | 12/05/2006 |
| 7134847 | Hermetic electric compressor having a suction muffler The present invention provides an hermetic electric compressor capable of stably supplying oil to a compression chamber with a low noise level. The hermetic electric compressor has a closed vessel, an electric element, a compressing element that is disposed over the... | 11/14/2006 |
| 7097435 | Device for draining and recharging a hermetic compressor with oil A method of draining and recharging a hermetic compressor with oil using a drainage assembly mounted in the compressor housing. The assembly includes a tube having a valve mounted at one end thereof with the second end of the tube located in the oil sump of the hous... | 08/29/2006 |
| 7083587 | Blood transfusion system The present invention provides a blood transfusion system having valve circuit, for transfusion of blood to a patient, said system comprising a Y-Shaped connector comprising of three arm [7, 16(a) and 16(b)] and a junction (9), whe... | 08/01/2006 |
| 7070400 | Diaphragm pump with eliminated pump chamber dead space, and circular recesses on the reverse side of the diaphragm for improved diaphragm chamber wall adherence The diaphragm suction pump has a pump chamber (7) located in a base plate (6), the wall of said chamber extending in a conical manner from a central flat base section (7′) to the lateral edge (8). The elastic pump diaphragm (5), ... | 07/04/2006 |
| 7059841 | Structure of an oil-free compressor on a vehicle An arrangement of an oil-free compressor apparatus on a rail vehicle for supplying compressed air to pneumatic units assigned to the rail vehicle. The arrangement includes an oil-free compressor and a cooler unit connected with the compressor. The arrangement also i... | 06/13/2006 |
| 7040875 | Refrigerant pump with rotors in bearing A refrigerant pump includes a thin-walled hermetic vessel and a thick-walled hermetic vessel having an end inserted into and secured to an end of the thin-walled hermetic vessel. A stator of an electric motor unit is fitted outside the thin-walled hermetic vessel, w... | 05/09/2006 |
| 7013793 | Diaphragm mounting method for a diaphragm pump A diaphragm pump and method for making same, the pump having a diaphragm coupled to a wobble plate achieved using: a post (11) protruding from the wobble plate toward the diaphragm and at least partially surrounded by a collar (11a); and a pin (... | 03/21/2006 |
| 7001506 | Self-cleaning circulatin system and method The present invention provides a system and method for providing a self-cleaning water circulation system which may be utilized for a fish pond, fountain, or the like. Means for automatically cleaning the pump intake to avoid pump failure due to leaves and debris is... | 02/21/2006 |
| 6978636 | Device for measuring pressure in automobile air conditioner and charging same with refrigerant and method of same A portable device for measuring the refrigerant pressure in an automobile air conditioning system and, if needed, charging the system with additional refrigerant, is provided. An actuator is coupled to a pressurized container that selectively opens the container val... | 12/27/2005 |
| 6971859 | Diaphragm unit A diaphragm unit includes a diaphragm and a diaphragm case. The diaphragm has a center point and an outer peripheral portion. The diaphragm case includes a fixing surface and a regulating surface. The fixing surface supports the diaphragm at the outer peripheral por... | 12/06/2005 |
| 6948920 | Toilet bowl and tank drainage device A hand held an portable pump has a housing with an inlet on the bottom and an outlet on its side. A central tube extends up from the housing and has a bulb attached at its end. An inlet gate is positioned proximate the inlet to operate between a closed position in w... | 09/27/2005 |
| 6945959 | System for detecting air A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between... | 09/20/2005 |
| 6776591 | Membrane pump comprising an inlet opening that is controlled by the membrane A membrane pump (1) having a membrane (24) which can be actuated by a crank drive (32), which membrane bounds, together with a concave pump body surface (8), a pump chamber (38), an inlet channel (4) and an outlet channel ( | 08/17/2004 |
| 6651742 | Method and apparatus for enhancing oil recovery An apparatus and method for enhancing oil recovery through improved injection well performance is provided, wherein a fluid is injected into the well bore at a pressure Pi, and a downhole fluid-actuated engine and pump assembly is employed as a... | 11/25/2003 |
| 6611425 | Electronic apparatus An electronic apparatus has a water-cooling system suited for a construction having compact, thin design. In the electronic apparatus, a water-cooling jacket is thermally connected to a heat-generating element, a heat-dissipating pipe is thermally connect... | 08/26/2003 |
| 6592343 | Air compression device A compact manually operated air compression device for precompressed air guns has been disclosed, wherein two operating levers, positioned on opposite sides of a cylinder, are connected to a piston rod by means of connecting links. Lightweight connection ... | 07/15/2003 |
| 6497560 | High volume low pressure air pump A high-volume low pressure hand operated air pump comprised of a tube body with a plunger shaft inserted into one end thereof and a check valve at the other end thereof with a floating seal secured to the internal end of the plunger shaft comprised of a c... | 12/24/2002 |
| 6464475 | Head for pumps in particular of the membrane or piston type and method for its manufacture A head for pumps in particular of the membrane or piston type used for watering and weeding, and to the method for its manufacture. The head has an internal metal frame able to provide it with mechanical strength, integrated in a structure made of materia... | 10/15/2002 |
| 6257848 | Compressor having a control valve in a suction passage thereof In a compressor for compressing a gaseous fluid, a control valve (22) is arranged for controlling an open area of a suction passage (17,18) which is for introducing the gaseous fluid. In a first state where the gaseous fluid has a relatively low flow rate... | 07/10/2001 |
| 6231319 | Hermetic compressor A hermetic compressor includes a plurality of compressing mechanisms. Each of the compressing mechanism includes a rotary cylinder having a groove, and a piston slidable in the groove, so that a compressing stroke is carried out by rotation of said piston... | 05/15/2001 |
| 6171081 | Fuel pump assembly A fuel pump assembly is capable of improving follow-up ability of a push rod relative to an eccentric cam by increasing a spring force of a push rod spring, without increasing a size of the fuel pump assembly. The fuel pump assembly comprises a lower pump... | 01/09/2001 |
| 6146114 | Fluid pump and expandable energy storage device A fluid pump and expandable energy storage device includes a substantially igid circular band, a substantially rigid central hub, a membrane fixed to the band and to the hub, the membrane being enlargeable by a fluid introduced into the device, and a plura... | 11/14/2000 |
| 5957673 | Injection pump for diesel engines An injection pump for a diesel engine has a pump cylinder with a pump piston slideably mounted therein. The piston has a broadened foot portion. A cam is mounted on the camshaft and a rocker arm is mounted on a pivoting axis and has a camshaft end and a p... | 09/28/1999 |
| 5947706 | Hand operated floor pump with retractable stand A hand operated floor pump has a retractable stand of a tripod type which is movable between a retracted position wherein three support legs are held in closely adjacent relationship with a pump barrel and an expanded position wherein the legs extend subs... | 09/07/1999 |
| 5823754 | Manual pump A manual pump includes first and second tubular members. The first tubular member has an upper closed end, a lower open end, and a piston member extending through and mounted movably in the first tubular member. The second tubular member has an upper open... | 10/20/1998 |
| 5806575 | Vacuum extractor of a vacuum container A vacuum extractor mounted in an one-way valve in a lid of a container body of a vacuum container and adapted to extract air out of the vacuum container, including an extraction pump mounted in the one-way valve and driven to draw air away from the contai... | 09/15/1998 |
| 5787854 | Device with fuel injection and lubricant delivery means for internal combustion engines In order to provide a device with fuel injection and lubricant feed means for internal combustion engines, preferably for manual guided equipment, such as chain saws, with a helical gear wheel (12) mounted on a crankshaft (11) or driven indirectly by the ... | 08/04/1998 |
